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If I leave the 100 watt bulb on for a week (7 days, 24 hours a day) how much would it cost me? 1.0KWII costs S0.16. (1 pt) PE
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If I leave the 100 watt bulb on for a week (7 days, 24 hours a day) how much would it cost me? 1.0KWII costs S0.16. (1 pt) PE

If I leave the 100 watt bulb on for a week (7 days, 24 hours a day) how much would-example-1
User Gyonder
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4.5k points

1 Answer

2 votes

A week has a total of:


(7)(24)=168\text{ }

hours. This means that we we use a total of:


(168)(100)=16800\text{ W}=16.8*10^3=16.8\text{ KWH}

Then we spend:


16.8(0.16)=2.69

Therefore, it will cost $2.69

User ChrisC
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4.8k points
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